<!DOCTYPE html>
<html>
<head lang="en">
	<meta charset="UTF-8">
<title>淡入淡出效果</title>
	<style>
		body{text-align: center;}
	</style>
</head>
<body> 

<img src="images/ad.jpg"  /><br/>
<input name="fadein_btn" type="button" value="淡入" /> 
<input name="fadeout_btn" type="button" value="淡出" />
<script  src="js/jquery-1.12.4.js" ></script>
<script>
	$(document).ready(function() {

	});
</script>
</body>
</html>
